Rosesharon Charm

Janelle Dunn

Chassidy Holloway

Jewett moss

Wood scraps Wood Glue Balloon Scissors Tape

Measurer Card Board Nails Hinge Plastic Cup Box Cutter Stamp Foam Letters Duct Tape PVC pipe Hammer Spray Paint

• Our group started off with the goal of making the project simple.

• We are expected to Design and build a "stamper".

• Project should display :

Projectile motion

Conservation of energy Conservation of momentum

Total Cost:

• $0.00• $2.00• $0.50• $1.00• $0.00• $0.00• $0.00• $2.50• $1.00• $0.00• $2.50• $0.50• $0.00• $0.00• $0.00

$10.00

Tramp-O-Stamp starts when a marble is placed in a PVC pipe. After traveling through the PVC pipe, the ball pops out onto a small version of a trampoline. The ball then bounces up and hits a toy car that is at rest on a ramp. The toy travels down the ramp and collides into a piece of wood with the stamp of lazy dog on it!

Energy in Device

PROJECTILE MOTIONThe ball bouncing off the trampoline represents projectile motion

CONSERVATION OF MOMENTUMThe Car accelerating down ramp to hit the board represents COM

Initial velocity of car-.5 in/s²Mass car-10 grams

Mass block- 25 gramsFinal velocity block-.62 in/s²

10(.5)-25(.62)= velocity car10

CONSERVATION OF ENERGYCOE in our device is represented when the ball initially starts to when it rolling down

the pipe.

*Our initial project didn’t include Conservation of Momentum : We had to start over .

*After bouncing on the mini-trampoline we couldn’t get the ball to boune into cup.: We deleted the cup idea and let ball bounce into the car

*The last problem was getting the board with the stamp on it to stay up: We applied a hinge to solve this problem

In conclusion, The Lazy Dog: Tramp-O-Stamp was a very successful project. We met all the requirements that we were supposed to. Our group worked very well together and we applied all of our EF151 knowledge in building this project.

Let’s Check Out How it Works!